Hearing aid charging unit



FIG. 1 is a perspective view of a hearing aid charging unit showing mynew design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top view thereof;

FIG. 7 is a bottom view thereof; and,

FIG. 8 is a perspective view thereof in an opened configuration.

The broken lines depict portions of the hearing aid charging unit inwhich the design is embodied that form no part of the claimed design.

CLAIM The ornamental design for a hearing aid charging unit, as shownand described.